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Java > Open Source Codes > nextapp > echo2 > app > componentxml > propertypeer > ResourceImageReferencePeer


1 /*
2  * This file is part of the Echo Web Application Framework (hereinafter "Echo").
3  * Copyright (C) 2002-2005 NextApp, Inc.
4  *
5  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6  *
7  * The contents of this file are subject to the Mozilla Public License Version
8  * 1.1 (the "License"); you may not use this file except in compliance with
9  * the License. You may obtain a copy of the License at
10  * http://www.mozilla.org/MPL/
11  *
12  * Software distributed under the License is distributed on an "AS IS" basis,
13  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14  * for the specific language governing rights and limitations under the
15  * License.
16  *
17  * Alternatively, the contents of this file may be used under the terms of
18  * either the GNU General Public License Version 2 or later (the "GPL"), or
19  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20  * in which case the provisions of the GPL or the LGPL are applicable instead
21  * of those above. If you wish to allow use of your version of this file only
22  * under the terms of either the GPL or the LGPL, and not to allow others to
23  * use your version of this file under the terms of the MPL, indicate your
24  * decision by deleting the provisions above and replace them with the notice
25  * and other provisions required by the GPL or the LGPL. If you do not delete
26  * the provisions above, a recipient may use your version of this file under
27  * the terms of any one of the MPL, the GPL or the LGPL.
28  */
29
30 package nextapp.echo2.app.componentxml.propertypeer;
31
32 import org.w3c.dom.Element JavaDoc;
33
34 import nextapp.echo2.app.Extent;
35 import nextapp.echo2.app.ResourceImageReference;
36 import nextapp.echo2.app.componentxml.InvalidPropertyException;
37 import nextapp.echo2.app.componentxml.PropertyXmlPeer;
38 import nextapp.echo2.app.util.DomUtil;
39
40 /**
41  * <code>PropertyXmlPeer</code> implementation for
42  * <code>nextapp.echo2.app.ResourceImageReference</code> properties.
43  */
44 public class ResourceImageReferencePeer
45 implements PropertyXmlPeer {
46
47     /**
48      * @see nextapp.echo2.app.componentxml.PropertyXmlPeer#getValue(java.lang.ClassLoader,
49      * java.lang.Class, org.w3c.dom.Element)
50      */
51     public Object JavaDoc getValue(ClassLoader JavaDoc classLoader, Class JavaDoc objectClass, Element JavaDoc propertyElement)
52     throws InvalidPropertyException {
53         if (propertyElement.hasAttribute("value")) {
54             return new ResourceImageReference(propertyElement.getAttribute("value"));
55         } else {
56             Element JavaDoc resourceImageReferenceElement = DomUtil.getChildElementByTagName(propertyElement,
57                     "resource-image-reference");
58             if (!resourceImageReferenceElement.hasAttribute("resource")) {
59                 throw new InvalidPropertyException("Invalid ResourceImageReference property (resource not specified).", null);
60             }
61             String JavaDoc resource = resourceImageReferenceElement.getAttribute("resource");
62             String JavaDoc contentType = null;
63             if (resourceImageReferenceElement.hasAttribute("content-type")) {
64                 contentType = resourceImageReferenceElement.getAttribute("content-type");
65             }
66             Extent width = null;
67             if (resourceImageReferenceElement.hasAttribute("width")) {
68                 width = ExtentPeer.toExtent(resourceImageReferenceElement.getAttribute("width"));
69             }
70             Extent height = null;
71             if (resourceImageReferenceElement.hasAttribute("height")) {
72                 height = ExtentPeer.toExtent(resourceImageReferenceElement.getAttribute("height"));
73             }
74             return new ResourceImageReference(resource, contentType, width, height);
75         }
76     }
77 }
78
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